Okay, I spent the morning fixing it up.  So long as people still use it, I'll update it.
It now works in chrome, firefox, and IE.  
Also, it is now up to date with a bunch of new sources.  Creatures from more than one source, list the source in parenthasis in the drop down list.  Also, the created creature info now has the source for the creature at the bottom of the output.
Also, notes for IE.  It's slower and won't show two columns.  I don't really know why and don't want to spend any more time looking at it.